Digital.ai Senior Developer Interview Questions and Answers

Basic Logical programs

Q1. Explain laravel Structure
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Q2. Database migration
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Q3. What is indexing in database
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Q4. What is controller ,What is Route
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Q1. Why you leave your previous Company
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Q2. What is your role in previous company
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Aptitude questions with 2-3 coding questions

Q1. Input-wwwrrrrttttuu Output - w3r4t4u2
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Q2. Interpreter vs compiler
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Interpreter executes code line by line, compiler translates code into machine code before execution.
• Interpreter translates code into machine code line by line during runtime

• Compiler translates code into machine code before execution

• Interpreted languages include Python, JavaScript

• Compiled languages include C, C++
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Q1. Difference between function and stored procedure.
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Functions return a value while stored procedures do not. Functions can be used in SELECT statements, stored procedures cannot.
• Functions return a value, stored procedures do not

• Functions can be used in SELECT statements, stored procedures cannot

• Functions must return a value, stored procedures may or may not
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Q2. Write a query to find the manager of the employee.
Ans. 
Use a self join to find the manager of the employee.
• Join the employee table with itself on the manager_id and employee_id columns

• Select the manager's details based on the employee's manager_id
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Q3. To write a stored procedure.
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Q4. What is trigger?
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A trigger is a special type of stored procedure that automatically executes when certain events occur in a database.
• Triggers can be used to enforce business rules, perform data validation, or maintain referential integrity.

• Examples of trigger events include INSERT, UPDATE, and DELETE operations on a table.

• Triggers can be defined to execute before or after the triggering event.
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Q5. What do you know about JSON?
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Normal java coding question

Q1. What are spring ioc
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Spring IoC (Inversion of Control) is a design pattern where the control of object creation and lifecycle is shifted to a container or framework.
• In Spring IoC, objects are created and managed by the Spring container.

• It helps in achieving loose coupling between classes.

• Dependency Injection is a key feature of Spring IoC, where dependencies of a class are injected by the container.

• Example: @Autowired annotation in Spring
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Q2. Different implementation of map interface
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The Map interface in Java provides a way to store key-value pairs and retrieve values based on keys.
• Different implementations of the Map interface include HashMap, TreeMap, LinkedHashMap, and ConcurrentHashMap.

• HashMap provides constant-time performance for basic operations but does not guarantee the order of elements.

• TreeMap maintains elements in sorted order based on keys.

• LinkedHashMap maintains the insertion order of...read more
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Logical reasoning, problem solving

Q1. Tell me about your self
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Q2. Family background
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Some Objective questions and 1 Coding Questions

Q1. Situation based questions on Coroutines
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Q2. About Project Tech Stack Used and Questions on that
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2 DSA questions Both are from DP

Q1. 2 Questions , 1 is DSA
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Q2. Second question is Puzzle
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Q1. Implement tail f
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